Hello, yesterday I got the new Mario game (downloaded it from eShop). I bought it mainly because I liked very much the co-op mode of the Wii version. Well, I have to say that I'm really disappointed so far: the game has a lot of slowdowns in co-op mode, sometimes it becomes so slow that you can't even play (in the middle of action it goes 5fps or so for some seconds). Anyone else here experienced these problems?

Nice response DDJ.
These forums tend to get bunched up a little too much at times, with all topics on a game being limited to a single thread. Many times it just saves space - but theres no problem with a few more in situations like these.

Actually on topic: My brother and I have played quite a bit of the game in co-op already, and I'd have to say it's alright. Both having to follow one screen can be an annoyance at times, but I see why they did it. I have had some slowdown at certain points in the game - but it was rare. I'd say it's not bad considering it's the first handheld experience that we can fully experience in multiplayer.

You said you downloaded it from the e-shop. Since that's the case the game is running from the SD card.
Do you have slow loading times on swapnote or any other application such as the camera? If so there is your problem.
If it's anything more than a class 4 the 3DS does not utilize it. (Speculation)

I don't think it's a problem that is existent in all copies.
You also have to take into account other wireless interference.

You said you downloaded it from the e-shop. Since that's the case the game is running from the SD card.
Do you have slow loading times on swapnote or any other application such as the camera? If so there is your problem.
If it's anything more than a class 4 the 3DS does not utilize it. (Speculation)

I don't think it's a problem that is existent in all copies.
You also have to take into account other wireless interference.

how would wireless interference affect the frames per second?? it may affect latency, which may cause the other player to appear to warp around the screen, but i've never heard of that happening with local wireless

You said you downloaded it from the e-shop. Since that's the case the game is running from the SD card.
Do you have slow loading times on swapnote or any other application such as the camera? If so there is your problem.
If it's anything more than a class 4 the 3DS does not utilize it. (Speculation)

That's an interesting point man. Yes, I downloaded ithe game from the eShop and I'm using the 2gb SD card which came with the 3DS (I don't know what class it is, we should ask Nintendo). By the way the slowdown occurs only in co-op mode, I can play the "one player" game just fine. Do you think buying 2 new faster SD cards (but what class do you think is alright?) on both 3DS that I use to play in co-op I can solve the problem? If so Nintendo should warn users that their SD card sucks for some games and if you plan to buy a digital copy of NSMB 2 you should also buy a new faster SD...

Yes, when my 3DS lags, the 3DS of my girlfriend does the same. It happens A LOT of times, I would say almost every level has its slowdown moments for 5-6 seconds! And it's very difficult to play like this because when the game starts slowing down you can't do anything other than waiting everything comes back to normal speed (it's really THAT slow, 3fps I'd say... unplayable).

Yes, when my 3DS lags, the 3DS of my girlfriend does the same. It happens A LOT of times, I would say almost every level has its slowdown moments for 5-6 seconds! And it's very difficult to play like this because when the game starts slowing down you can't do anything other than waiting everything comes back to normal speed (it's really THAT slow, 3fps I'd say... unplayable).

If you're still using the stock SD card and you don't get lag on anything else I don't think upgrading your will solve it.
Back up the contents on your SD card and re-download like theblackdragon suggested.
Be sure to back up your SD card though because if it doesn't solve the issue you would have lost you save data. (assuming retail downloads are like 3DSWare downloads.)

I played co-op for about two or three hours earlier (we were both using physical copies) and while it did get a little bit laggy at times, it wasn't anything bad enough to cause much of a problem for us.
Playing co-op was so much more fun than single player.

Interesting lag issues with Mario co op. I have to agree that the source of frequent lag may be the 3DS having to access the SD card. Nintendo is definitely going to include the cheapest slowest SD card. I also think a hard copy of the game may access data faster...hence less slowdown and lag. My experience has been that digital download has more drawbacks than positives. So I'm getting the cartridge tomorrow. Perhaps you can experiment with the cartridge on two 3DS and tell us if you get allot less lag playing co op? Also try upgrading to a faster class of SD card.

Just gotta put up with the occasional bit of lag, but unless other people have it worse than me then it's pretty minor.

Ok, I just finished playing the game again in co-op (played for about 2 hours). Well, the lag is really terrible guys, I don't know if the problem is related to Nintendo's crappy SD card but on both my consoles the slowdowns are very frequent (the water stage at world 3 was a continue lag, near all level was laggy! I don't know how I could finish it playing at a so slow framerate but I did...). Now I'm going to write Nintendo support, if they don't have any fix for the problem I'll ask for a refund. I bought the game just to play in co-op with my gf, if the digital copy (which Nintendo advertised SO MUCH encouraging people to buy it) works so bad I want my money back to buy the retail version (which hopefully will work better).

A lot of people have trouble telling the difference between lag and low frame rates. There's probably wireless interference. Try playing Mario Kart 7 locally if you have it. I bet you'll have the same problem.

@gamer2000 ...And what does all that have to do with New Super Mario Bros. 2 co-op being laggy?

SuperSonic95 wrote:

A lot of people have trouble telling the difference between lag and low frame rates. There's probably wireless interference. Try playing Mario Kart 7 locally if you have it. I bet you'll have the same problem.

Yeah, I've noticed some lag in a lot of 3DS games while playing local multiplayer.
Occasional a little bit in Mario Kart 7 and Kid Icarus: Uprising and sometimes quite a bit in Mario Tennis Open.
From my experiences with this so far, I'd say that it's no more laggy than Mario Tennis Open is and it barely hinders the gameplay.

The problem though is from what DDJ has been saying, there seems to be a chance that the digital copy might suffer from more severe lag issues than it's physical counterpart, making the game barely playable.
It'd be good if a few more people were able to test this out.